Bracket for air filters



March 16, 1954 F SCUTT BRACKET FOR AIR FILTERS 2 Sheets-Sheet 1 Filed 1,1950 w 5 a a EEE III INVENTOR. CfWfi/JZI 55077 47'70F/Vf) March 16, 1954E, SCUTT BRACKET FOR AIR FILTERS 2 Sheets-Sheet 2 Filed Nov. 1, 1950Patented Mar. 16, 1954 BRACKET FOR AIR FILTERS Francis E. Scutt, Elmira,N. Y., assignor to Bendix Aviation Corporation, South Bend, Ind, acorporation of Delaware Application November 1, 1950, Serial No. 193,470

'7 Claims. 1

The present invention relates to a bracket for securing an air cleanerto a carburetor for an internal combustion engine.

An object of the present invention is to provide a bracket for securingan air cleaner to a carburetor, which permits the cleaner to be readilyassembled in place on the carburetor and easily removed therefrom.

Another object of the invention is to provide a bracket for mounting anair cleaner on a carburetor, which can be easily and securely attachedto the carburetor air horn before the cleaner is assembled in place.

A further object is to provide an air cleaner bracket for a carburetorwhich permits an air cleaner having an annular portion enclosing theupper end of the carburetor air horn to be readily assembled and securedin place on the air horn.

Additional objects and advantages of my invention will become apparentfrom the following description and accompanying drawings, wherein:

Figure 1 is an elevation of a carburetor and air cleaner showing aportion of the carburetor air horn and air cleaner broken away to revealthe construction of the means for securing the cleaner to the air horn;and

Figure 2 is a top plan view of the carburetor showing the bracketsecured in place at the air intake end of the air horn.

For the purpose of the present description, the carburetor shown in thedrawings may be considered as a conventional downdraft, float typecarburetor consisting of an air horn It, a choke valve [2, a main body[4 including a float chamber l6, and a throttle body 18 adapted to bemounted on an intake manifold 20 of an in- (ternal combustion engine(not shown). The carburetor contains the usual main discharge jet,idling system, and accelerating pump and may include an automatic chokeand fast idle cam, said cam being shown at numeral 22 mounted adjacentthe throttle lever 24 and connected to the choke valve by a rod 26. Theair cleaner may also be considered as a conventional unit and asillustrated includes a portion extending downwardly over the upper endof the air horn completely enclosing said air horn end.

The bracket 34 for securing the air cleaner to the carburetor air hornis an inverted U-shaped member 36 extending diametrically across theentrance to the induction passage of the air horn. The two arms 31 ofthe member are seated in vertical slots 38 disposed in thick sections 40in opposite side walls of the air horn and are retained therein by pins42 inserted in horizontal holes 14 extending longitudinally throughthick sections 40 and through a hole 46 in each arm of the U-shapedmember. These pins may be threaded at one end to prevent them frombecoming accidentally dislodged, although the downwardly extendingportion of the air cleaner may be sufficiently close to the side wallsof the air horn to prevent the pins from becoming displaced duringservice. A sleeve or collar 48 is secured to the central section of theU-shaped member and rigidly supports a bolt 50 which extends upwardlythrough the air cleaner and in conjunction with a winged nut 52 holdsthe air cleaner in place on the carburetor. A flange around the airoutlet of the air cleaner slips over the upper end of the air horn wallsand seats on annular shoulder 62 and is held firmly in place duringservice by bracket 34.

In assembling the bracket and an air cleaner having a portion extendingdownwardly over the air horn of the carburetor, the arms of the bracketare placed in slots 38, and pins 42 are inserted in holes 44 and 46. Theair cleaner is placed on the carburetor with flange 60 seated onshoulder 62 and then nut 52 is tightened on bolt 50, securing thecleaner in place for service.

Modification may be made in the bracket structure without departing fromthe scope of the invention. For example, instead of securing the boltrigidly to sleeve 48, the sleeve may be threaded and the bolt invertedto extend downwardly through the air cleaner into said sleeve. Further,member 36, instead of being U-shaped, may be a straight bar providedwith a hole at each end for receiving pins 42, and three or more arms 3!may be used in place of the two shown.

I claim:

1. In an assembly of an air cleaner and a carburetor having an inductionpassage: opposed slots in the internal wall of said passage extendingparallel therewith, a member extending across said passage and havingits ends inserted in said slots, a pin extending through each slotdisposed in said wall and engaging an end of said member, and a meansadapted to be conneoted to said member for securing said cleaner to saidcarburetor.

2. In an assembly of an air cleaner and a carburetor having an air hornwith an air inlet passage: diametrically opposed slots in the internalwall or" said passage extending longitudinally of said passage, aU-shaped member extending across said passage and having its endsinserted in said slots, a pin extending through each slot disposed insaid wall and engaging an end of said member, and a threaded memberadapted to be secured to said U-shaped member for securing said cleanerto said air horn.

3. A structure for securing an air cleaner to the air inlet passage of acarburetor, comprising a plurality of means forming a pair of opposedslots in the internal side walls of said passage, at least one means oneach side having a hole therein extending to the outside surface of saidwall and intersecting said slots, a member extending across saidpassage, the ends of said member having openings therethrough and beingadapted to seat in said slots, a pin in each hole inserted in theopening of said ends, and a means adapted to be connected to said memberfor securing said cleaner to said carburetor.

4. A structure for securing an air cleaner to the air inlet passage of acarburetor air horn, comprising a pair of diametrically opposed slots inthe internal side walls of said passage, a U- shaped member extendingacross said passage, the arms of said member having openings therein andbeing adapted to seat in said slots, holes in said side wallsintersecting said slots and extending to the outside surface of saidside walls, a pin in each hole inserted in the opening of said arms, anda threaded member adapted to be secured to said member for securing saidcleaner to said air horn.

5. A structure for securing an air cleaner to the air inlet pasage of acarburetor, comprising a pair of diametrically opposed slots in theinternal side walls of said passage, a U-shaped member extending acrosssaid passage, the arms of said member having openings therein and beingadapted to seat in said slots, holes in said side walls intersectingsaid slots and extending to the outside surface of said side walls, apin in each 4. hole inserted in the opening of said arms, a rod securedto said member extending in the direction opposite to said arms andbeing adapted to extend through said air cleaner, and a means on saidrod for securing said cleaner to said carburetor.

6. In the combination of a carburetor having walls forming an inductionpassage and an air cleaner bracket adapted to extend across saidpassage: a pair of opposed slots in the internal side walls of saidpassage for receiving the ends of said bracket, a hole in said sidewalls intersecting each slot and extending to the outside surface of thesaid side walls, and a pin in each hole adapted to engage an end of saidbracket.

7. In the combination of a carburetor having walls forming an inductionpassage and an air cleaner bracket adapted to extend diametricallyacross said passage: a pair of diametrically opposed slots disposed inthe internal side walls of said passage and extending longitudinallythereof for receiving the ends of said bracket, a bore in said sidewalls intersecting-each slot "and extending to the outside surface ofsaid side walls, and a pin in each bore adapted to engage an end of saidbracket and hold said bracket in operative position.

FRANCIS E. SCUTT.

References Cited in the file of this patent UNITED STATES PATENTS NumberName Date 1,354,483 Holland Oct. 5, 1920 1,412,790 Uehling Apr. 11, 19221,519,766 De Muth Dec. 16, 1924 1,580,291 Dollinger Apr. 13, 19281,635,007 Orem July 5, 1927 1,756,758 Orem Apr. 29, 1930 1,850,343Donaldson Mar. 22, 1932 1,951,956 Wood Mar. 20, 1934 2,412,753 SebokDec. 17, 1946

